US2543909A - Spout with spaced, flexible, peripheral flanges, releasably connectible to the rim of a carton opening - Google Patents

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Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/42—Details of containers or of foldable or erectable container blanks
  • B65D5/72—Contents-dispensing means
  • B65D5/74—Spouts
  • B65D5/746—Spouts formed separately from the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
  • B65D25/38—Devices for discharging contents
  • B65D25/40—Nozzles or spouts
  • B65D25/48—Separable nozzles or spouts
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49826—Assembling or joining
  • Y10T29/49863—Assembling or joining with prestressing of part
  • Y10T29/4987—Elastic joining of parts
  • Y10T29/49872—Confining elastic part in socket
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49826—Assembling or joining
  • Y10T29/49863—Assembling or joining with prestressing of part
  • Y10T29/49876—Assembling or joining with prestressing of part by snap fit

Definitions

• This invention pertains to delivery spouts for liquid dispensing containers and more especially to a spout applicable by the user to a cardboard or similar container, such as is commonly employed in the delivery of milk to the consumer.
• Containers of this kind usually have a pouring opening, commonly of polygonal contour, which is covered by a flap or other closure at the time of delivery, the flap or closure being removed or turned back by the user to expose the opening.
• the pouring opening is a mere aperture in a substantially fiat surface and since the container has no vent other than this aperture,
• a further object is to provide a pouring spout so devised as to provide a vent passage through which air may enter the container as the liquid is poured out.
• a further object is to provide a pouring spout of very simple and inexpensive type which is sanitary, easily cleaned and sterilized, and which fits leak-tight into the pouring opening in the container when inserted therein.
• a further object is to provide a pouring spout comprising means for closing it temporarily in the intervals between the delivery of milk from the container.
• Fig. 2 is a front elevation of the container shown in Fig. 1 but omitting the pouring spout;
• Fig. 3 is a longitudinal section, to large scale, illustrating one embodiment of the pouring spout of the present invention;
• Fig. 4 is a transverse section on the lin 4-4 of Fig. 3;
• Fig. 5 is a fragmentary section, to larger scale, on the same plane as Fig. 3 showing the inner or base portion of the spout fitted into the pouring opening in the container;
• the numeral 1 designates a dispensing container of a type commonly employed in the distribution of milk. These containers are usually made of cardboard properly treated to make them impervious to moisture and
• the container here shown for illustration (but Without limitation as to the utility of the spout of the present invention) has upwardly sloping top walls which merge with a handle portion 2.
• One at least of these upwardly converging top walls comprises two thicknesses of the material, an outer ply 5 and an inner ply 3, the latter (Fig. 2) having therein a pouring opening 4, which may be of any shape, as determined by the maker of the container.
• This opening is polygonal, the opening shown being substantially trapezoidal
• the outer ply 5 of this sloping top Wall is provided with a hinged flap portion 6 which normally covers and conceals the pouring opening 4.
• this flap is temporarily held in place by some adhesive means, for example parafiin or the like, but is lifted, as shown in Fig. 1, by the user preparatory to pouring out the liquid from the container.
• considerable difficulty is experienced in pouring the milk or other liquid from the container through the pouring opening 4, since this opening is in a flat wall of thin material.
• Such an opening does not have the characteristics of a smooth flow orifice, and the milk tends to cling to the container Wall and .dribble rather than to flow in a solid stream. For this reason much objection has been made to containers of this type.
• a pouring spout l is provided which may be inserted into the opening 5 by the user preparatory to pouring out the contents of the container.
• This spout is preferably a unitary mass of the selected material and may be made by a simple moulding operation such as is commonly employed in the making of small rubber or synthetic resin articles.
• this spout is made of vulcanized rubber and is quite soft and resilient, the softness and resiliency being comparable to that of the usualnursing bottle nipple.
• artificial rubber may be used or some of the synthetic plastics providing they have the requisite resiliency; that they are impervious to moisture; capable of employment for this purpose in a practical and economical way, and preferably capable of withstanding a sterilizing process without deterioration.
• the spout is of tubular construction comprising an elongate body portion 8 defining the delivery passage 9.
• This spout also comprises a base portion including the radial flange I and a second flange or enlargement H, here shown as a hollow bead or rib, spaced from the flange I 0, so as to provide an annular peripheral groove I2.
• the rib l l terminates, as shown at I3.
• the outside dimensions of the portion l3 are preferably somewhat less than the dimensions of the pouring opening 4, so that the part l3 constitutes a pilot lip which may be thrust into the opening 4 preparatory to pushing the rib II completely through the opening.
• the base portion of the spout is preferably of substantially the same contour, in transverse section, as that of the pouring opening l. At least that portion of the wall of the spout which defines the bottom of the groove I2 is of this contour, the dimensions of the bottom wall of the groove I2 being such that when the material of the wall 3 of the container which borders the opening 4 is seated within this groove [2, the bottom wall of the groove will bear against the edge of the opening with resilient pressure sufficient to provide a leak-tight joint.
• the shape of the rib or bead H is such that when the base portion of the spout is pushed through the opening 4, the bead II, in expanding, tends to crowd the material of the wall 3 against the inner surface of the flange i0, thus further assuring a leak-tight joint between the parts.
• the flanges l0 and H constitute retaining elements which hold the spout in place during use, although by exerting sufficient pull on the outer portion of the spout, it may readily be withdrawn from the pouring opening.
• the outer end of the spout is provided with a downwardly directed pouring lip M and with an external bead [5.
• Figs. 6, 7 and 8 slight modifications are illustrated.
• the spout although in most other respects like that previously described, has, in addition to the delivery passage 9*, an air vent passage I6 parallel to the passage 3, but preferably of substantially smaller cross section.
• the bead or flange H is shown as solid.
• the vent passage l6 extends from one end to the other of the spout and when the spout is mounted in the opening in the container wall and the liquid flows out through the passage 9 air is free to enter through the passage I6, thus venting the container so that the flow of fluid is free and un impeded by atmospheric pressure.
• the vent passage I6 is shown as provided with an extension I! consisting, for example, of a length of small diameter tubing, for instance glass, stainless steel or a plastic, comprising the portion l8 which is axially aligned with the passage l6 and embedded in the base portion of the spout and the delivery portion l9, here shown as at right angles to the part 18, and which terminates at 20.
• an extension I! consisting, for example, of a length of small diameter tubing, for instance glass, stainless steel or a plastic, comprising the portion l8 which is axially aligned with the passage l6 and embedded in the base portion of the spout and the delivery portion l9, here shown as at right angles to the part 18, and which terminates at 20.
• the terminal point 20 is disposed well above the level of the liquid in the container during the pouring operation so that the air is free to enter without danger that the vent will be overflowed by the fluid.
• the pouring spout is shown as provided with a detachable cover or cap 2
• tubular When herein reference is made to a tubular spout the term tubular is not intended to signify a spout of any particular transverse section.
• an attachable tubular spout for application to a filled container, and detachable following depletion of the container for use with another filled container to facilitate pouring a liquid therefrom, said spout having a continuous elastic bounding wall, defining a longitudinal pouring passage, spaced radially extending elastic anchoring flanges near one end of the spout formed integral therewith, adapted to embrace the wall of the container bordering the opening, one of said flanges being adapted to be forced through the opening and having at its outer end extremity a pilot lip of small enough diameter to enter the opening a substantial distance without squeezing, said pilot preceding the flange into the opening and increasing in diameter as it merges with the flange, said radial flanges being normally spaced apart along the spout by a distance less than the thickness of the container wall bordering the opening but being longitudinally distendable to increase the space therebetween by stretching the material of

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cartons (AREA)
• Closures For Containers (AREA)

Description

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24806131

Family Applications (1)

Country Status (1)

Cited By (40)

Citations (6)

• 1946
  • 1946-09-23 US US698649A patent/US2543909A/en not_active Expired - Lifetime

Patent Citations (6)

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